ITV

Engineers at the Severn Valley Railway are working in a race against time to overhaul one of the heritage line's most hard working steam engines. They're carrying out a £35,000 overhaul of the Flying Pig, which has been in service at the railway for more than 40 years. It was one of the first engines to run when the attraction opened to the public in 1970. It's affectionally known as the Flying Pig because when the LMS Ivatt Class 4's were built between 1947 and 1952, they were considered to be the ugliest locomotives of their time. More than 160 were built, but engine 43106 is now the only one left.